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Finding the Fourth Proportional to 150,615.81, 225,925.34 and 45,435.69

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Solution

The fourth proportional to 150,615.81, 225,925.34 and 45,435.69 is: 68,154.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,615.81 : 225,925.34 = 45,435.69 : x
  2. Step 2: Convert to fraction form
    150,615.81/225,925.34 = 45,435.69/x
  3. Step 3: Cross multiply
    150,615.81x = 225,925.34 × 45,435.69
  4. Step 4: Simplify right side
    150,615.81x = 10,265,073,711.38
  5. Step 5: Solve for x
    x = 10,265,073,711.38/150,615.81
  6. Step 6: Final answer
    x = 68,154.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.